Structural piece



FIG. 1 is a front elevational view of a structural piece showing my new design, the rear being identical thereto;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view of FIG. 1;

FIG. 5 is a right side elevational view of FIG. 1;

FIG. 6 is a front elevational view of a second embodiment of a structural piece showing my new design, the rear being identical thereto;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a left side elevational view of FIG. 6;

FIG 10 is a right side elevational view of FIG. 6;

FIG. 11 is a front elevational view of a third embodiment of a structural piece showing my new design, the rear being identical thereto;

FIG. 12 is a top plan view thereof;

FIG. 13 is a bottom plan view thereof;

FIG. 14 is a left side elevational view of FIG. 11;

FIG. 15 is a right side elevational view of FIG. 11;

FIG. 16 is a front elevational view of a fourth embodiment of a structural piece showing my new design, the rear being identical thereto;

FIG. 17 is a top plan view thereof;

FIG. 18 is a bottom plan view thereof;

FIG. 19 is a left side elevational view of FIG. 16;

FIG 20 is a right side elevational view of FIG. 16;

FIG 21 is a front elevational view of a fifth embodiment of a structural piece showing my new design, the rear being identical thereto;

FIG. 22 is a top plan view thereof;

FIG. 23 is a bottom plan view thereof;

FIG. 24 is a left side elevational view of FIG. 21;

FIG. 25 is a right side elevational view of FIG. 21;

FIG. 26 is a front elevational view of a sixth embodiment of a structural piece showing my new design, the rear being identical thereto;

FIG. 27 is a top plan view thereof;

FIG. 28 is a bottom plan view thereof;

FIG. 29 is a left side elevational view of FIG. 26; and,

FIG. 30 is a right side elevational view of FIG. 26. 

The ornamental design for a structural piece, as shown and described. 